Electric telephone talking-machine.



E, H. Alvin. EVU-:mmc TELEPHONE TALKING mAcHlNE. APPLICATION FILED IULYI7'19I6.

Qpd Patented Apr. 10, 1917'.

'UWT-ED strarns EDWRD H. AMET, OF REDONDO BEACH, CALJUE(DENIA.`

'recentie'.

To all 'whom t may concern.'

Be it known that I,`EDWARD H. AMET, a citizen of the United States,` residing at Redondo Beach, in the county of Los Angeles andState of California, have invented a new and useful Electric Telephone Talking-Machine, of which. the following is a` f specification.v y

I regard thls invention as pioneer and basic in that I provide the tone arm of a commercial talking machine with means for electrically reproducing sound records, thus E utilizing the highly perfected sound amplifying means and constructions .of cabinet talking machines Vnowin use for amplify-f.

ing the electrical reproductions.4

An object of this invention is -to produce a new and superior type of commercial talking machine; and the invention is appli-f cable to various 'kinds of commercial talking machines new in common use; particularly -to those using disk records and to those` using cylinder'records.

Heretofore talking machines of a commercial character have been provided with sound amplifying means comprising a tone arm and a horn, and vibrations are transmitted to the sound amplifyingv means through the medium of a soundbox that is subjected to the mechanical vibrations of a style which contacts with a sound record de- Evice such as disk or cylinder having the 'sound record impressed thereon.

This invention 1s regarded as pioneer and basicin that l haveproduced a talking machine of commercial character comprising in combination aV style for receiving and transmitting mechanical vibrations .setup by the record of a 4sound record device, nrean's for receiving said'mechanical vibra` tions and translating them into electricalA impulses, and means "operated by said electrical impulses to produce soundwaves, and

propagate the same vin"the,tone arm.

This invention is regarded as basic in'that I have mounted upon the.` tone-arm of a i talking machine two translators,` one' of which isconnectedto a talkinggmachine style and is mechanically actuated therebyand is adapted' to translate .the jmechanical vibrations receivedtherefrom into electrical Specification of Letters Patent.

ELECTRIC TELEPHONE TALKING-MACHINE.

Patented dpr., Ml, am?.

. vApplication iled J'uly 17, 1916. Serial No. 109,816.

impulses; the other ofsaid translators being connected to receive said electrical impulses and adapted and arranged to translate the same into sound-wave impulses and to deliver said sound wave impulses through its connections to the tone-arm.

That is to' say, l have provided the tone arm with two translators and mountings or connections therefor whereby the impulses of the sound record are electrically translated and are conducted to the tone arm .of the talking machine as sound wave impulses.

The invention is cnsidered basic in that' it provides means for combining with the talking machine tone arm, two electrical translators, one adapted for receivingthe mechanical vibrations of the style vand translating the same into electrical impulses, the other adapted for receiving such electrical impulses and translating them into sound wave impulses and delivering them as soundwaves to the tone-arm.

Sound records upon disk or cylinder record devices are impressed uponI a surface so as to move the st vle with a to-and-fro motion,v either laterally or up and down. It is well recognized that the recorddevice to those caused by the record and these latter extraneous vibrations are known as Ineedle drag.

This invention is regarded as pioneer and basic in that I have produced a talking machine 'of commercial character comprising in combination, vmeans for receiving and transmitting mechanical vibrations set up by a sound record device, means for receiving -transmitsto the style vibrations in addition said mechanical'vibrations and translating` them into electrical impulses, means operated by said electrical impulses to produce 'sound waves, and means for amplifying said inc Arendition in marked contrast with the renditions from present talking machines in superiority of tone, color, volume and volume control with minimum mechanical vibrations from sources other than the record.

An object of this invention is to provide means for converting the commercial type of talking machines into an electrical translating and sound-reproducing machine.

This new type of talking machine comprises in combination sound-amplifying means which may be of the usual character including a tone-arm and a horn, a telephone Vreceiver carried by said sound-ampli` tying means and adapted to transmit sound waves to the sound-amplifying means, a style connected to sound-amplifying means, non-resonant means to 'prevent the transmission of mechanical vibrations from the style to the telephone receiver, an electrical transmitter connected to receive vibrations from the style and to translate the same into electrical impulses, and means connecting said electrical transmitter with the tele-l phone receiver to operate the same by said electrical impulses.

In this invention a variable resistance electro-magnetic telephone system is intro. duced between the stylev and the tone arm of the well-known talking machine and bears the relation to a sound-record device that the Iordina-ry sound boX bears to the same in the art as heretofore known, wherever the sound boX reproduces the mechanical movements of the style by proportionate air waves set up by the motion of the style ap-. plied mechanically to the diaphragm of the sound boX.

n my present invention the vibrations set up by the style are translated into electrical v.

impulses which are reproduced through the medium of an electro-magnetic receiver and by it transposed upon the air medium to producetheaudible effect directly in the tone arm upon which it is mounted.

The advantage arising from'the electro magnetic translation and reproduction is that it is thus made possible to produce vibrations which would not otherwise have recognizable energy in the air reproduction and to magnify the same until Vthey add their record reproduction.

In this invention a microphone takes the direct vibration of the needle and the intensity of the electric impulse and the sound produced is in proportion to the energy applied to the style and may be of greatei or less intensity in propoition to the intensity of the electric current applied.

Electro-magnets may be actuated by the current thus `varied by the microphone, to reproduce a vibration set up by the style with either less volume than its actual movement would produce, or with as much greater volume as may be desired.

An object is to provide means whereby even when the reproduced soundv isline, it will have true color and tone; the tone being maintained throughout a complete range from the least volume to the greatest volume obtainable within the capacity of the transmitting microphone.

An object. of, this invention is to adaptl the ordinary telephone receiver for the pur;f`

pose of electrical reproduction of recorded sound waves.

Another-object of the invention ois to make provision whereby the tone arm of 4a talking ,machine of present types can be supplied with electrical reproduction means. f A vAn object is to provide means whereby the vibrations of movingparts of the machine other than the style will not affect Other objects, 'advantages and features of novelty may appear from the accompanying drawings, the subjoined detail descrip-l tion and the appended claims.

In the accompanying drawings the invention will be shown with translators -connected in primary circuit but it is obvious that they may be connected in any of the well known circuits commonly employed in the art. y

My translator picks up the sound record vvibrations of the style and magnifies the same without slurring. l provide means whereby' a line inexpensive talking machine will be made into an electrical machine without any added horns or cabinets.

The accompanying drawings illustrate the invention.

the sound l .Figure l is a diagrammatic elevation illustrating a talking machine of the disk type constructed in accordance with this inven- Fig. 2 is a. plan partlyin section of the tone translator, its mountings and connec tions and a fragment of thev tone arm to which they are connected.

Fig. 3 isa fragmental section of the T record disk b and mounted .upon the usual y caulnet c contamlng the built-1n sound ain plifying mea'n's or horn (l. It is understood that the turn-table is operatedby the usual motor"1 `contained inI the'cabinet and4 not shown in the drawings. Said cabinet is also provided with the usual tone .arm support e in which the talking machine tone arm-f ispivotally mounted in the usual Way on a vertical aXis at g.

Said tone arm is also, provided with the usual head 7L which is 4simply a T fitting. theV stem of which opens into thesmall end of the usual. taper bore of the tone arm.Y

lThe reproducing style1 is'connected by non-resonant style holder or clamping means .`2 with a style arm3 that is pivotally connected to the tone arm f by the non-resonant hub 4 that is rotatably mounted on stud 5 A which is connected to a tubular mounting 6 that 1s carried by the T head It of the tone Said hub 4 is secured position on stud 5 by a thumb nut 7 and comprises a"`sleeve 8f having a. flange 9 at one end and threaded at the other end to receive a flange nut 10.

The style arm 3 as shown is af strip of' sheet steel orother suitable material having a hole 11 to receive and considerably larger than the sleeve 8. y Said arm is adjustably and non-resonantly supported on the sleeve 8 by means of soft india rubber Washers 12,

13`1'nounted on said spindle on opposite sides of the arm 3 and clamped thereto by a flange nut 10. A thumb-nut 7 is screwed onto the spindle 5, and by tightening said thumb-nut the sleeve is m-ounted friction tight against the spindle support, which is formed of the 'inner and outer nut-s 14, 15, locked together on a threaded portion:l 16 of the spindle, the inner nut 14 fitting tightly inside the mounting 6 Which is provided With a lateral oriiice 17 to serve as a lateral valve port copT erating with 'the tone-arm Walls to limit the cross-sectional area of; the passage into theJ small'end of the 'tone-arm.-

4mounting-in the head. A

'The telephone receiver tube 2O is mounted l on the outer end of the bushing 18 and abuts against the flange-19. Means consistingof l-a rotatable ,bearing having a. valve-bke Vmovement for regulating the area of .an

opening into the sound-conducting arm of the talking machine are thus provided for .the record groove.

mounting the sound-reproducing meauls or telephone receiver on the tone-arm. 1 have thus formed a valve control.between 'the sound-reproducing means and the tone arm.

Upon. the telephone receiver tube 20 is vmounted' the telephone receiver housing 21 upon Whichis mounted a-telephone receiver 22 of approved type; Said receiver 22 inc ludes the usual diaphragm 23 .andthe electro-magnet 24l for operation thereof; said magnet -being in the electric circuitcompris ing the leadl 25, switch 26, battery 27, lead 28, tone-arm 3, variable resistance electrical telephone transmitter29, and the lead30. vSaid telephone transmitter 29 is directly ac'- tuated by. the'reproducing style traveling in Said resistance 29 may be mounted on the tone-arm in any suitable manner Well-known in the art, vand one method of mounting the same is illustrated .in my co-pending application for dead beat balanced electrical transmitter, Serial No. 82,266, filedin the United States Patent Office Mar. 4,1916. v Means are provided -for operatively'c'onnecting a telephone system and the style of the talking machine with vsound-amplitying means.

The non-resonant style holder and clai'ptone-arm 3and a non-resonant style holder or mounting -32 provided With a slanting ystyle seat 33 therein and compressed by la Washer mounted on, and a thumb-nut 35 screwed onto said stud'31. nant mounting is connected to the style.

y ing means 2 comprises a stud 31 fixed to the The seat 33 may be made either by an avvl -hole through the support 32 or by a slit from lone side a considerable depth into the support,`so that when said style is inserted as shown in Fig. '4 and thefnut v35 .screwed home, the style will be firmly clamped at the desired angle. y j

The variable resistance 29.is mountedon a conducting stud 36 between the stud 31 and the arm-supporting sleeve 8 and closeto the free end of the style arm 3, thus forming a. moderate weight projecting from the flatV tone-arm on the side `opposite the style holder or clamping means 2. Auron-res@A nant vibration stop or absorbing Weight 37 is applied to the style arm 3 on the side thereof opposite the variable resistance 29. l

Said vibration stop is mountedon the style arm by a bolt 38, nut 39 and Washer 40, and consists of' a weight 41 made of lead or some other suitable material and a non-resonant Washer 42 interposed between the Weight 41 and the arm 3.

The telephone receiver is acoustically connected to the tone arm by the tube 20, the 'coupling 18 and the tubular mounting 6.

1n practical operation the vibrations transmitted by the record to the `record ac tuated style 1 produces in the variable resistance 29 variations which are e'ective upon the electro-magnet 24 and operate the telc-l and carried by the-style and tone' arm and phone diaphragm 23, thus producing' sound T"arranged to receive impulses from the style;

wave .impulses in the hollow sound wave or impulse conductor formedby lthe parts 18, 6, and f. .The telephone'receiver22 is thus connected to deliver sound wave impulses to said sound wave impulseconductor.

vThe sound wave Aimpulses are transmitted.. 'through 1the port lof'the bearing '6 when. said bearing is turned to cause the port. 17

to register with the bore of the tone-arm.

. The telephone receiver bein thus connected and operated by the recor actuated style, delivers sound wave impulses into said' sound -wave conductor. It-'is thus seen that means-'carried by the tone-arm are connected to actuate the tele'l .y phone receiver also carried by the tonearm to set up soundimpulses in said conductor and to transmit them through the tone-arm, and that I have produced in a talking machine a telephone system in operable connection with the tone-arm thereof. 't

The openingV 17 is. susceptible of ad]ust ment in relation to the opening into the tone-arm for proportioning the sound wave passage vfor'the regulation of the sound re- By rotating the telephone receiver and thus turning the tubularA mounting. 6 the passage through the port 17 Ainto the tonearm f may be, reduced and enlarged by these Y mechanical means as desired to give the full volume of the sound impulses set up by the diaphragm or to modify the same as may be required.

lThe volume of soundimpulses set up in the tone arm will depend upon the amount of energy in the translating electric circuit.

I have thus produced the combination with means forreproducing sound wave vibrations of means for accurately translating the same into an undulatory electric current corresponding to the original sound wave impulses, and moreover have provided in combination therewith, an. arrangement, by which the sound wave impulses are delivered into the tone-arm of the talking machine. v

" I claim 1. The combination with a talking machine tone arm and a style connected thereto, of an electrical transmitter connected lto a telephone receiver mounted on and carried by said tone arm and acoustically connected l to the tene arm; and electrical connections' connecting the' electrical .transmitter with the telephone receiver.

2. In an electrical telephone talking machine'thev combination with a style arm'; of

mounted on the style arm between the style and thesupport. v

3. In an electrical telephone talking machine the combination with a style arm; of

a style mounting thereon; a style carried by said mounting; a telephoneV transmitter on.

said style arm; a support for one end of said i stylearm, the other end being free, and a weight non-resonantly mounted on the style arm between the style and transmitter on the 4. lIn an electrical telephone talking machine, a style arm; non-resonant means for supporting one end -of said stylearm, the

lon'e'side of saidweight, and the support on I the other side. v 1

other end of said arm being free; and a style at .the free end of the style arm, a telephone transmitter at the/ free end of the style arm; and a non-resonantly mounted weight on the style arm between said style non-resonant support on the other hand.'

5. The combination with a tonefarm, of a and transmitter on the one hand, and the telephone receiver cared by said tone-arm,

means to transmit sound-wave impulses from said receiver to said tone-arm, a style arm connected to said tone-arm and having a -free end; a style at the free end of the style arm; a telephone transmitter at the free end of the style arin; and a weight between the transmitter and style on theone hand andthe style arm support on the otherI hand.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 12th day of July, 191 A.

` EDWARD H. AMIET.'v Witness:

JAMES R. TowNsnND.- 

